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Finding the Fourth Proportional to 316,806.50, 437,612.21 and 236,093.90

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Solution

The fourth proportional to 316,806.50, 437,612.21 and 236,093.90 is: 326,122.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,806.50 : 437,612.21 = 236,093.90 : x
  2. Step 2: Convert to fraction form
    316,806.50/437,612.21 = 236,093.90/x
  3. Step 3: Cross multiply
    316,806.50x = 437,612.21 × 236,093.90
  4. Step 4: Simplify right side
    316,806.50x = 103,317,569,977.99
  5. Step 5: Solve for x
    x = 103,317,569,977.99/316,806.50
  6. Step 6: Final answer
    x = 326,122.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.